This isn’t considered verification in the UK from what I can tell. Companies are now implementing AI face scans, ID checks and credit card verification to comply with the UK law. I’m not a lawyer or even British, but it wouldn’t make sense to me that companies would spend money to turn away their UK customers otherwise.
The video game trick doesn’t work everywhere. I don’t know about deepfakes and such, both how easily available they are and how good they are at tricking the age verification.